CN204510158U - Strobe monitoring - Google Patents
Strobe monitoring Download PDFInfo
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- CN204510158U CN204510158U CN201520091811.7U CN201520091811U CN204510158U CN 204510158 U CN204510158 U CN 204510158U CN 201520091811 U CN201520091811 U CN 201520091811U CN 204510158 U CN204510158 U CN 204510158U
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Abstract
The utility model discloses a kind of strobe monitoring, comprise PLC, gate level meter, fuel tank, oil pump and oil cylinder, the lower hydraulic fluid port of oil cylinder and the oil-out of oil pump are communicated with by oil pipe and are provided with proportioning valve, the upper hydraulic fluid port of oil cylinder is communicated with by oil pipe with fuel tank, the control end of proportioning valve is electrically connected with PLC, and the oil-in of oil pump is communicated with by oil pipe with between fuel tank and is provided with pump valve; It is characterized in that: also comprise three-position four-way valve, the P mouth of three-position four-way valve is communicated with the oil-out of oil pump, and T mouth is communicated with fuel tank, and A mouth is communicated with the lower hydraulic fluid port of oil cylinder, B mouth is communicated with the upper hydraulic fluid port of oil cylinder, and proportioning valve is arranged between the P mouth of three-position four-way valve and the oil-out of oil pump; The control end of three-position four-way valve is electrically connected with PLC.The utility model has rational in infrastructure, that control effects is desirable feature.
Description
Technical field
The utility model belongs to hydraulic engineering technical field, relates to a kind of strobe monitoring.
Background technology
Water conservancy gate is equipment indispensable in water resources and hydropower construction, is mainly divided into tide-block sluice, navigation lock and the hydraulic turbine for sluice etc. according to application function difference.Along with the continuous progress of science and technology, to the control technology comparative maturity of water conservancy gate, the water conservancy gate monitoring system generally adopted at present, substantially all design based on the theory realizing Automated condtrol, relative to the mode adopting in one's early years artificial visually examine's gauge to judge water level height then job control gate opening/closing, have that automaticity is high, reduction manpower and materials and an advantage such as safe and reliable.
At present, mostly adopt oil cylinder to carry out the keying of hydraulic control open-close sluice gate, only need to control the in-oil cylinder object that can reach hydraulic control open-close sluice gate into and out of oil mass.But current strobe monitoring, for the control of oil cylinder into and out of oil, in other words, namely there is irrational situation in design on the pipeline structure of oil transportation, makes the control for gate there is certain defect, cause final control effects undesirable.
Such as, in current sluice control system, hydraulic switch gate is substantially all decline by deadweight, but, due to the existence of hydraulic pressure, what hydraulic switch gate and gate can be pasted compares tight, causes frictional force very large, hinder the decline of hydraulic switch gate, hydraulic switch gate time serious, even can be caused cannot to fall the situation of lock.Therefore, for this problem, have much room for improvement.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of strobe monitoring, has rational in infrastructure, that control effects is desirable feature.
For achieving the above object, the utility model provides following technical scheme:
A kind of strobe monitoring, comprise PLC, gate level meter, fuel tank, oil pump and oil cylinder, the lower hydraulic fluid port of described oil cylinder and the oil-out of oil pump are communicated with by oil pipe and are provided with proportioning valve, the upper hydraulic fluid port of described oil cylinder is communicated with by oil pipe with fuel tank, the control end of described proportioning valve is electrically connected with PLC, and the oil-in of described oil pump is communicated with by oil pipe with between fuel tank and is provided with pump valve; It is characterized in that: also comprise three-position four-way valve, the P mouth of described three-position four-way valve is communicated with the oil-out of oil pump, T mouth is communicated with fuel tank, A mouth is communicated with the lower hydraulic fluid port of described oil cylinder, B mouth is communicated with the upper hydraulic fluid port of described oil cylinder, and described proportioning valve is arranged between the P mouth of three-position four-way valve and the oil-out of oil pump; The control end of described three-position four-way valve is electrically connected with PLC.
Further, also comprise the pressure transmitter be arranged on oil pipe, described pressure transmitter is electrically connected with PLC.
Further, the correction valve in parallel with proportioning valve is also provided with between the P mouth of described three-position four-way valve and the oil-out of oil pump.
Compared with prior art, the utility model has the advantages that:
By arranging this three-position four-way valve, when opening hydraulic switch gate, PLC controls three-position four-way valve, the P mouth of three-position four-way valve is communicated with A mouth, T mouth is communicated with B mouth, the oil that so oil pump exports just can enter the lower oil cavitie of oil cylinder from the lower hydraulic fluid port of oil cylinder, and the oil in oil cylinder upper oil cavitie can be back in fuel tank from upper hydraulic fluid port; After the aperture of hydraulic switch gate reaches predetermined value, A, B mouth that PLC controls three-position four-way valve disconnects with P, T mouth respectively, and so the aperture of hydraulic switch gate remains unchanged; When closing hydraulic switch gate, the P mouth that PLC controls two three-position four-way valves is communicated with B mouth, and A mouth is communicated with T mouth, and so the oil of oil cylinder lower oil cavitie flow back into fuel tank by three-position four-way valve, and the oil that oil pump exports can enter into the upper oil cavitie of oil cylinder.Therefore, when closing hydraulic switch gate, the oil pressure by increasing upper oil cavitie to the upper oil cavitie oil transportation of oil cylinder can be realized, promoting hydraulic switch gate and declining, preventing hydraulic switch gate to be stuck.
Accompanying drawing explanation
Fig. 1 is the system syndeton schematic diagram of the utility model embodiment;
Fig. 2 is the systematic schematic diagram of the utility model embodiment;
Fig. 3 is the schematic diagram of the oil cylinder of the utility model embodiment.
Accompanying drawing marks: 1, oil pipe, and 2, piston, 3, expansion link, 4, upper oil cavitie, 5, lower oil cavitie, 6, oil cylinder.
Detailed description of the invention
Referring to figs. 1 through Fig. 3, the utility model embodiment is described further.
For achieving the above object, the utility model provides following technical scheme:
A kind of strobe monitoring, comprise PLC, gate level meter, fuel tank, oil pump and oil cylinder 6, the lower hydraulic fluid port of described oil cylinder 6 and the oil-out of oil pump are communicated with by oil pipe 1 and are provided with proportioning valve, the upper hydraulic fluid port of described oil cylinder 6 is communicated with by oil pipe 1 with fuel tank, the control end of described proportioning valve is electrically connected with PLC, and the oil-in of described oil pump is communicated with by oil pipe 1 with between fuel tank and is provided with pump valve; It is characterized in that: also comprise three-position four-way valve, the P mouth of described three-position four-way valve is communicated with the oil-out of oil pump, T mouth is communicated with fuel tank, A mouth is communicated with the upper hydraulic fluid port of described oil cylinder 6, B mouth is communicated with the lower hydraulic fluid port of described oil cylinder 6, and described proportioning valve is arranged between the P mouth of three-position four-way valve and the oil-out of oil pump; The control end of described three-position four-way valve is electrically connected with PLC.
As shown in Figure 3, in the prior art, oil cylinder 6 inside is separated into upper oil cavitie 4 and lower oil cavitie 5 by piston 2, wherein, upper oil cavitie 4 is provided with hydraulic fluid port, and lower oil cavitie 5 is provided with lower hydraulic fluid port, telescopic shaft one end of oil cylinder 6 is fixedly connected with piston 2, and the other end stretches out and is in transmission connection with hydraulic switch gate.When needs hydraulic control open-close sluice gate rises, from lower hydraulic fluid port oil-feed, lower oil cavitie 5 oil pressure is made to increase, the piston 2 of oil cylinder 6 inside is made to move to upper oil cavitie 4 thus drive expansion link 3 to be retracted into oil tank inside, and then drive hydraulic switch gate to rise, meanwhile, the oil in upper oil cavitie 4 flow back in fuel tank from upper hydraulic fluid port; When hydraulic switch gate declines, the oil in lower oil cavitie 5 flows out from lower hydraulic fluid port, and piston 2 moves to cavity of resorption, and expansion link 3 stretches out oil cylinder 6, and meanwhile, the oil in fuel tank is injected in the upper oil cavitie 4 of oil cylinder 6 by upper hydraulic fluid port.
Due in hydraulic engineering, PLC has obtained a large amount of disclosing for the technology controlling the equipment such as various valve, motor, the present embodiment just repeats no more its concrete operating principle at this, and the scheme that those skilled in the art should provide according to this patent is implemented.
Above scheme, by arranging this three-position four-way valve, when opening hydraulic switch gate, PLC controls three-position four-way valve, the P mouth of three-position four-way valve is communicated with A mouth, T mouth is communicated with B mouth, and the oil that so oil pump exports just can enter the lower oil cavitie 5 of oil cylinder 6 from the lower hydraulic fluid port of oil cylinder 6, and the oil in oil cylinder 6 upper oil cavitie 4 can be back in fuel tank from upper hydraulic fluid port; After the aperture of hydraulic switch gate reaches predetermined value, A, B mouth that PLC controls three-position four-way valve disconnects with P, T mouth respectively, and so the aperture of hydraulic switch gate remains unchanged; When closing hydraulic switch gate, the P mouth that PLC controls two three-position four-way valves is communicated with B mouth, A mouth is communicated with T mouth, and so the oil of oil cylinder 6 lower oil cavitie 5 flow back into fuel tank by three-position four-way valve, and the oil that oil pump exports can enter into the upper oil cavitie 4 of oil cylinder 6.Therefore, when closing hydraulic switch gate, the oil pressure by increasing upper oil cavitie 4 to upper oil cavitie 4 oil transportation of oil cylinder 6 can be realized, promoting hydraulic switch gate and declining, preventing hydraulic switch gate to be stuck.
In addition, oil pipe 1 is also provided with pressure transmitter, and pressure transmitter is electrically connected with PLC.By arranging pressure transmitter, can oil pressure on each oil pipe 1 of Real-Time Monitoring, burst because oil pressure is too high to prevent oil pipe 1.
Further, the correction valve in parallel with proportioning valve is also provided with between the P mouth of three-position four-way valve and the oil-out of oil pump.This correction valve is a kind of manual control valve, and when proportioning valve breaks down and cannot work, staff carries out manual operation by this correction valve, control oil cylinder 6 into and out of oil mass, so that the lifting of Non-follow control gate can be realized.
The concrete control operation of this monitoring system realizes by the touch-screen be connected with PLC, quick and convenient.
Claims (3)
1. a strobe monitoring, comprise PLC, gate level meter, fuel tank, oil pump and oil cylinder, the lower hydraulic fluid port of described oil cylinder and the oil-out of oil pump are communicated with by oil pipe and are provided with proportioning valve, the upper hydraulic fluid port of described oil cylinder is communicated with by oil pipe with fuel tank, the control end of described proportioning valve is electrically connected with PLC, and the oil-in of described oil pump is communicated with by oil pipe with between fuel tank and is provided with pump valve; It is characterized in that: also comprise three-position four-way valve, the P mouth of described three-position four-way valve is communicated with the oil-out of oil pump, T mouth is communicated with fuel tank, A mouth is communicated with the lower hydraulic fluid port of described oil cylinder, B mouth is communicated with the upper hydraulic fluid port of described oil cylinder, and described proportioning valve is arranged between the P mouth of three-position four-way valve and the oil-out of oil pump; The control end of described three-position four-way valve is electrically connected with PLC.
2. strobe monitoring according to claim 1, is characterized in that: also comprise the pressure transmitter be arranged on oil pipe, and described pressure transmitter is electrically connected with PLC.
3. strobe monitoring according to claim 1, is characterized in that: be also provided with the correction valve in parallel with proportioning valve between the P mouth of described three-position four-way valve and the oil-out of oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520091811.7U CN204510158U (en) | 2015-02-07 | 2015-02-07 | Strobe monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520091811.7U CN204510158U (en) | 2015-02-07 | 2015-02-07 | Strobe monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204510158U true CN204510158U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520091811.7U Active CN204510158U (en) | 2015-02-07 | 2015-02-07 | Strobe monitoring |
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| Country | Link |
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| CN (1) | CN204510158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113718935A (en) * | 2021-06-22 | 2021-11-30 | 上海同瀛环境工程有限公司 | Lifting weir gate and state detection system thereof |
-
2015
- 2015-02-07 CN CN201520091811.7U patent/CN204510158U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113718935A (en) * | 2021-06-22 | 2021-11-30 | 上海同瀛环境工程有限公司 | Lifting weir gate and state detection system thereof |
| CN113718935B (en) * | 2021-06-22 | 2022-12-06 | 上海同瀛环境工程有限公司 | Lifting weir gate and state detection system thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |